CN217496095U - Lifting traction mechanism of road fault vehicle - Google Patents

Abstract

The utility model discloses a lifting traction mechanism of a road fault vehicle, which comprises four groups of tire lifting devices, wherein the four groups of tire lifting devices respectively correspond to four tires of a fault vehicle; the tire lifting device comprises a support unit capable of rolling on the ground and a holding unit capable of holding a tire tightly; the bracket unit is provided with a lifting unit which can lift the enclasping unit; the planetary gear train structure is utilized to achieve the effect of saving more power than the common rocker arm structure.

Description

Lifting traction mechanism of road fault vehicle

Technical Field

The utility model belongs to trouble car lifts the field.

Background

If the tires of the failure vehicle which cannot run are in a locked state, the failure vehicle cannot be pulled by the tractor, four groups of tire lifters which can roll on the ground are prepared for the failure vehicle which cannot run, each group of tire lifters corresponds to one wheel, each group of tire lifters is respectively arranged on the corresponding wheel, then four rollers are synchronously lifted upwards, and the condition that the failure vehicle can be pulled by the tractor is achieved; the scheme is a more labor-saving optimized structure designed for the tire lifting device.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the not enough that exists among the prior art, the utility model provides a road fault vehicle lift drive mechanism utilizes the planet wheel structure to reach more laborsaving than general rocker structure.

The technical scheme is as follows: in order to achieve the purpose, the lifting traction mechanism of the road fault vehicle comprises four groups of tire lifting devices, wherein the four groups of tire lifting devices respectively correspond to four tires of a fault vehicle; the tire lifting device comprises a support unit capable of rolling on the ground and a holding unit capable of holding a tire tightly; the bracket unit is provided with a lifting unit which can lift the enclasping unit;

the tire lifting device comprises a motor, wherein the tail end of an output shaft of the motor is coaxially connected with an output gear, and the tire lifting device also comprises an arc inner rack which is coaxially arranged at the front upper part of the output gear; a lifting gear is arranged between the output gear and the arc inner rack, the lifting gear is meshed with the arc inner rack and the output gear simultaneously, the lifting gear can rotate clockwise and rotate clockwise along the axis of the output gear simultaneously by clockwise rotation of the output gear, and the holding unit rotates along the axis of the output gear along with the lifting gear.

Furthermore, the tire lifting device also comprises a rocker arm extending along the oblique front part, and the middle part and the oblique lower end of the rocker arm are respectively provided with a first bearing hole and a second bearing hole; the first bearing hole is in running fit with a lifting gear shaft of the lifting gear through a bearing; the second bearing hole is in running fit with the output shaft through a bearing; the inclined front end of the rocker arm is connected with the enclasping unit through a connecting arm.

Further, it embraces the piece including preceding circular arc of front-back symmetry and the piece is embraced to the back circular arc to embrace the unit tightly, preceding circular arc is embraced the piece and the piece is embraced tightly in the front and back side of the tire that corresponds with the axle center to the back circular arc.

Further, when the front arc holding piece and the rear arc holding piece are coaxially held on the front side and the rear side of the corresponding tire, the tire and the lifting gear are coaxially held.

Furthermore, an expansion piece bracket is fixed on one side of the front arc holding piece close to the connecting arm, an expansion piece extending backwards is fixedly installed on the expansion piece bracket, and the tail end of a telescopic rod of the expansion piece is fixedly connected with the rear arc holding piece through a connecting block, so that the front arc holding piece and the rear arc holding piece are close to or far away from each other due to the extension and retraction of the telescopic rod; the telescopic device bracket is fixed on the connecting arm.

Further, the support unit comprises a horizontal beam higher than the ground, a front roller seat and a rear roller seat are fixed at the front end and the rear end of the horizontal beam respectively, front rollers are installed on the left side and the right side of the front roller seat in a rotating mode, and rear rollers are installed on the left side and the right side of the rear roller seat in a rotating mode.

Further, the motor is fixed on the horizontal beam through a motor bracket; and two ends of the arc inner rack are respectively fixed on the horizontal beam through the first rack bracket and the second rack bracket.

Has the beneficial effects that: the clockwise rotation of the output gear enables the lifting gear to rotate clockwise under the meshing constraint of the racks in the circular arcs and also rotate clockwise along the axis of the output gear, so that the rocker arm is driven to swing upwards along the axis of the output gear, the rocker arm drives the front circular arc holding piece, the rear circular arc holding piece and the held tire to swing upwards along with the rocker arm, and the geometric center of the held tire is lifted upwards along with the upward swing of the rocker arm to be separated from the ground due to the fact that the held tire and the lifting gear are coaxial; then controlling a motor to brake to complete the lifting process of a single tire; because four gyro wheels of the trouble car that can't go are all upwards raised the certain distance by the tire lifting device that corresponds respectively to make four gyro wheels all break away from ground, and four tire lifting device 1 all with ground roll complex, consequently at this moment the whole very easy quilt of car is pulled by the tractor, the utility model has the advantages of simple structure utilizes the planetary gear train structure to reach than general rocker arm structure power saving more.

Drawings

FIG. 1 is a schematic view of the overall structure of the device;

FIG. 2 is a schematic view from another perspective of FIG. 1;

FIG. 3 is a schematic view of the apparatus after it has gripped a tire;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a schematic view of a clasping apparatus;

fig. 6 is a schematic view of the carriage unit and the lifting unit.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The lifting traction mechanism of the road fault vehicle shown in fig. 1 to 6 comprises four groups of tire lifters 1, wherein the four groups of tire lifters 1 respectively correspond to four tires 26 of a fault vehicle; the method is characterized in that: the tire lifting device 1 comprises a support unit capable of rolling on the ground and a holding unit capable of holding the tire 26 tightly; the bracket unit is provided with a lifting unit which can lift the enclasping unit;

the concrete structure of this scheme is as follows: the support unit comprises a horizontal beam 5 higher than the ground 27, a front roller seat 22 and a rear roller seat 10 are respectively fixed at the front end and the rear end of the horizontal beam 5, front rollers 2 are rotatably mounted at the left side and the right side of the front roller seat 22, and rear rollers 11 are rotatably mounted at the left side and the right side of the rear roller seat 10;

the tire lifting device 1 comprises an electric or hydraulic driven motor 9 with a brake device, and the motor 9 is fixed on the horizontal beam 5 through a motor bracket 8; the tail end of an output shaft 23 of the motor 9 is coaxially connected with an output gear 12, and the electric control device further comprises an arc inner rack 17 which is coaxial with the output gear 12, wherein the arc inner rack 17 is arranged in front of and above the output gear 12, and two ends of the arc inner rack 17 are fixed on the horizontal beam 5 through a first rack bracket 3 and a second rack bracket 13 respectively; a lifting gear 4 is arranged between the output gear 12 and the arc inner rack 17, the lifting gear 4 is simultaneously meshed with the arc inner rack 17 and the output gear 12, the clockwise rotation of the output gear 12 enables the lifting gear 4 to rotate clockwise and also to rotate clockwise along the axis of the output gear 12, as shown in figure 1, in the initial state before lifting, the lifting gear 4 of the tire lifter 1 is meshed with the reverse hour hand end of the arc inner rack 17, and the lifting gear 4 rotates clockwise along the axis of the output gear 12 to enable the gravity center of the tire lifter to be lifted, so that the lifting effect is achieved; the clasping unit rotates along the axis of the output gear 12 along with the lifting gear 4; the planetary gear train structure is utilized to achieve the effect of saving more power than the common rocker arm structure.

The tire lifting device 1 further comprises a rocker arm 7 extending along the oblique front direction, and a first bearing hole 24 and a second bearing hole 25 are respectively formed in the middle and the oblique lower end of the rocker arm 7; the first bearing hole 24 is in running fit with the lifting gear shaft 6 of the lifting gear 4 through a bearing; the second bearing hole 25 is in running fit with the output shaft 23 through a bearing; the inclined front end of the rocker arm 7 is connected with the enclasping unit through a connecting arm 19; the holding unit comprises a front arc holding piece 21 and a rear arc holding piece 14 which are symmetrical front and back, and the front arc holding piece 21 and the rear arc holding piece 14 are coaxially held on the front side and the rear side of the corresponding tire 26; when the front arc holding piece 21 and the rear arc holding piece 14 are coaxially held at the front side and the rear side of the corresponding tire 26, the held tire 26 and the lifting gear 4 are coaxially held; an expansion piece bracket 20 is fixed on one side of the front arc holding piece 21 close to the connecting arm 19, an expansion piece 18 extending backwards is fixedly installed on the expansion piece bracket 20, and the tail end of an expansion rod 16 of the expansion piece 18 is fixedly connected with the rear arc holding piece 14 through a connecting block 15, so that the expansion and retraction of the expansion rod 16 enable the front arc holding piece 21 and the rear arc holding piece 14 to be close to or far away from each other; the pantograph bracket 20 is fixed to the connecting arm 19 so as to synchronize the gripping unit as a whole with the rocker arm 7;

the working principle is as follows:

if the tires of the failure vehicle which cannot run are in a locked state and cannot be pulled by the tractor, the four tires need to be synchronously lifted upwards; preparing four groups of tire lifting devices 1 aiming at a fault automobile which cannot run, wherein each group of tire lifting device 1 corresponds to one wheel, and installing each group of tire lifting devices 1 on the corresponding wheel respectively;

process of mounting the tire lifter 1 on the corresponding wheel:

in an initial state, the lifting gear 4 of the tire lifter 1 is meshed with the counterclockwise end of the circular arc inner rack 17, the telescopic rod 16 of the expansion piece 18 is in an extending state in the initial state, the front circular arc holding piece 21 and the rear circular arc holding piece 14 are respectively arranged on the front side and the rear side of the corresponding tire, then the telescopic rod 16 of the expansion piece 18 is controlled to retract, the front circular arc holding piece 21 and the rear circular arc holding piece 14 are enabled to be close to each other until the front circular arc holding piece 21 and the rear circular arc holding piece 14 are coaxially held on the front side and the rear side of the corresponding tire 26, and at the moment, the tire 26, the two front rollers 2 and the two rear rollers 11 are all in contact with the ground;

a lifting process:

at this time, the motor 9 is controlled to enable the output gear 12 to rotate clockwise, the clockwise rotation of the output gear 12 enables the lifting gear 4 to rotate clockwise under the meshing constraint of the circular arc inner rack 17 and simultaneously to rotate clockwise along the axis of the output gear 12, so that the rocker arm 7 is driven to swing upwards along the axis of the output gear 12, the rocker arm 7 is further driven to drive the front circular arc holding piece 21, the rear circular arc holding piece 14 and the held tire 26 to swing upwards along with the rocker arm 7, and because the held tire 26 and the lifting gear 4 are coaxial, the geometric center of the held tire 26 is lifted upwards along with the upward swing of the rocker arm 7 to be separated from the ground; then controlling a motor 9 to brake to complete the lifting process of a single tire;

because four rollers of the fault car which cannot run are respectively lifted upwards by the corresponding tire lifting devices 1 for a certain distance, the four rollers are separated from the ground, and the four tire lifting devices 1 are in rolling fit with the ground, so that the whole car at the moment is easily pulled by the tractor.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (6)

1. A lifting traction mechanism of a road fault vehicle comprises four groups of tire lifting devices (1), wherein the four groups of tire lifting devices (1) respectively correspond to four tires (26) of a fault vehicle; the tire lifting device (1) comprises a support unit capable of rolling on the ground and a holding unit capable of holding a tire (26); the bracket unit is provided with a lifting unit which can lift the enclasping unit;

the method is characterized in that:

the tire lifting device (1) comprises a motor (9), wherein the tail end of an output shaft (23) of the motor (9) is coaxially connected with an output gear (12), and the tire lifting device also comprises an arc inner rack (17) which is coaxially arranged at the front upper part of the output gear (12); lifting gears (4) are arranged between the output gears (12) and the circular-arc inner racks (17), the lifting gears (4) are simultaneously meshed with the circular-arc inner racks (17) and the output gears (12), clockwise rotation of the output gears (12) enables the lifting gears (4) to rotate clockwise and simultaneously rotate clockwise along the axes of the output gears (12), and the holding unit follows the lifting gears (4) to rotate along the axes of the output gears (12).

2. The lifting traction mechanism of the road fault vehicle as claimed in claim 1, wherein: the tire lifting device (1) further comprises a rocker arm (7) extending along the oblique front direction, and a first bearing hole (24) and a second bearing hole (25) are respectively formed in the middle and the oblique lower end of the rocker arm (7); the first bearing hole (24) is in running fit with a lifting gear shaft (6) of the lifting gear (4) through a bearing; the second bearing hole (25) is in running fit with the output shaft (23) through a bearing; the inclined front end of the rocker arm (7) is connected with the enclasping unit through a connecting arm (19).

3. The lifting traction mechanism of the road fault vehicle as claimed in claim 2, wherein: the clasping unit comprises a front arc clasping sheet (21) and a rear arc clasping sheet (14) which are symmetrical front and back, and the front arc clasping sheet (21) and the rear arc clasping sheet (14) are clasped on the front side and the rear side of the corresponding tire (26) with the same axle center.

4. The lifting traction mechanism of the road fault vehicle as claimed in claim 3, wherein: when the front arc holding piece (21) and the rear arc holding piece (14) are coaxially held at the front side and the rear side of the corresponding tire (26), the tire (26) is held tightly with the lifting gear (4).

5. The lifting traction mechanism of the road fault vehicle as claimed in claim 4, wherein: a telescopic device support (20) is fixed on one side, close to the connecting arm (19), of the front arc enclasping piece (21), a telescopic device (18) extending backwards is fixedly installed on the telescopic device support (20), and the tail end of a telescopic rod (16) of the telescopic device (18) is fixedly connected with the rear arc enclasping piece (14) through a connecting block (15), so that the front arc enclasping piece (21) and the rear arc enclasping piece (14) are close to or far away from each other due to the extension and retraction of the telescopic rod (16); the telescopic device bracket (20) is fixed on the connecting arm (19).

6. The lifting traction mechanism of the road fault vehicle as claimed in claim 5, wherein: the support unit is including horizontal beam (5) that is higher than ground (27), the front and back end of horizontal beam (5) is fixed with preceding gyro wheel seat (22) and rear roller seat (10) respectively, preceding gyro wheel (2) are all installed in the left and right sides of preceding gyro wheel seat (22) rotation, rear roller (11) are all installed in the left and right sides of rear roller seat (10) rotation.

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